Journal of Civil and Environmental Engineering

In terms of performance, the public procurement of construction work in this sector is particularly interesting due to the availability of nonreimbursable funds for water supply networks. This study aims to identify key issues and patterns in the interaction between economic operators and Romanian contracting entities that award such construction contracts. During the offer preparation stage, rounds of clarification requests bring about the engagement. The specialized literature analysis revealed that the topic was not covered in many scientific publications. An empirical examination of selected tenders was the subject of the research. In addition to quantitative data on the same tenders, the qualitative analysis of publicly available questions and responses serves as the primary focus of the research methodology. According to the findings of the study, a significant portion of all questions analyzed focus on the technical specifications of the contract notice documents. Multiple tenders may contain the same questions in some instances. The evaluation periods for tenders are long. Participation is dominated by bidder associations of multiple economic operators and the tenders are published with a similar strategic profile (such as open tendering and no lot division).

In order to comprehend the mechanism of a rainfall-induced landslide, it is necessary to conduct research on how soil moisture responds to climatic conditions. The purpose of this study is to investigate how fines content affects how soil moisture responds to repeated wetting and drying cycles. The dirt’s were instrumented with soil dampness sensors and they were exposed to 2 patterns of wetting and drying. All of the soil samples' moisture content decreased more quickly during the second drying cycle than during the first. However, the repeated wetting and drying cycles had less of an impact on the recovery of soil moisture during wetting. The soil moisture loss during drying is significantly influenced by the fines content. The fines content had little effect on the soil moisture's response to wetting. The wetting soil moisture responses can be simulated with some degree of accuracy, as demonstrated by the numerical seepage analyses' findings. However, there were significant discrepancies between the actual measurements and the simulated drying soil moisture responses. The findings suggested that during the repeated wetting and drying cycles, the soil may have experienced changes in soil structure, void ratio, or the formation of desiccated cracks that cannot be captured by a typical finite element seepage analysis.